Improvement in rubber springs for wagons



s. G GLOUGH.

Garflage'Spring.

Patented Dec. 26; 1865.

fizvenior UNITED STATES PATENT OFFIC SAMUEL Gr. ULOUGH, OF WAUPUN,WISCONSIN.

IMPROVEMENT IN RUBBER SPRINGS FOR WAGONS.

Specification forming part of Letters Patent No. 51,697,

To all whom it may concern Be it known that I, SAMUEL G. OLoUGH, of thevillageofVVaupun, county ofDodge, State of Wisconsin, have invented anew Method of Attaching or Applying Rubber Springs to \Vagons; and Idodeclare thatthe following is a full and exact description thereof,reference being bad to the accompanying drawings,and to letters ofreference marked thereon, in

. whichtaching two sets of cast-iron cups to the hind axle and bolsterof a wagon in such manner as to receive rubber springs, on which pistonsare placed, which are attached to the crossbar above the bolster, andwhich supports the box or load; also, in using two cups for the forwardaxle,which is made in such a manner as to hold the spring, answer thepurpose of bolster-plates, and keep out the dirt and gravel. Thus itwill be seen that good durable springs are easily and permanentlyapplied to a lumberwagon.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

I construct my wagon in any of the wellknown forms, and apply or attachmyimprovement thereto in the following manner: On each side of the hindbolster, L, and axle M I attach two cups, E E, Fig. 1, in which I placerubber springs. On these springs press a double piston, F F, Fig.l,whichisconnected to the cross-bar G, that sustains the load. It willbe seen, Fig. 1, that these cups have flanges a fitted to them, throughwhich bolts b pass, that fasten them to the bolster and axleof thewagon, thereby a-fl'ordinga durable mode of attaching them thereto andto each other.

Another important object is accomplished by my mode ofattachmentviz.,thestrengthening of the axle by connecting it with thedated December :26, 1865.

bolster by means of the bolts and flanges on the cups. In my arrangementI do not use a rubber spring thinking it to be new or its application tolumbefiwagons as new, butsimply from the fact of its beinga good elasticspring. Neither do I use the cups thinking them to be new, nor couldIwithout adapting them to the specific purpose; but to do this they needto be changed so as to conform to the sides of the bolster and axle onwhich they are placed and afford ready means of attaching them thereto.To accomplish thisI causeafiange, a, to be made soas to project belowthe bottom and from-each side ofthe cup, so as to permit bolts v to passthrough them to confine them to the bolster and axle. These bolts,passing through the flange on one side of the bolster and axle,

then through the bolsterand axle, and then through the flange on theother side, are confined by means ofa head and nut in the ordinarymanner. Between the front bolster and sand-board I insert another springby means of two cups, as shown, Fig. 1, H I. These cups serve thepurpose of bolster-plates and take their place when applied. Topreventthe dirt and sand from falling into these front cups I make theupper one to project down over the lower one, as seen in Fig. 3, therubber being contained in both cups.

I am aware that rubber springs have been applied to lumber-wagons bymeans of clasps passing below the hind axle and pins passing through theaxle and bolster communicating with the cross-bar. There are seriousobjections to this mode of-application. The clasp passing below theaxle, by obstructions and broken. Another objection is that the passingof the pin through the axle and bolster tends to weaken them, makingthem liable to be broken when heavily loaded.

It will be seen by my arrangements that the above objections are fullyobviated and instead of diminishing the strength of the bolster and axleby connecting them together, I greatly increase their strength anddurability.

I am aware, also, that springs have been applied to the forward bolsterand axle by means ofa cup cut into and placed upon the axle, completelycutting into the sand-board and it is liable to be caught deeply intothe axle. There are objections to l \Vhat I claim as my invention, anddesire this mode of application, among which is the l to secure byLetters Patent of the United cutting into of the sand-board, cuttinginto i States, is-

the axle, and having the cup in which the rub- The combination andarangenlent of the her is placed open upward. cups E E, the axle M, andbolster L with the It will be seen thatby my arrangement-all ofdouble-headed piston FF and cross-bar Gr, all

the above objections are obviated, besides afconstructed and operatingsubstantially as set fording a much easier mode of application. forth,for the purpose described.

There are no alterations necessary to apply 1 SAMUEL G'- ULOUGH. it toordinary wagons, and when applied it in- I Witnesses: creases theirstrength and durablity instead T. 'l. PROSSER,

of diminishing it. l JNO. H. MGOUTUHEN.

